Job Description Summary

JR Technologies is looking for Junior Database Administrators to join our DBA team, whose main aim is to monitor, tune and oversee our current Database Servers and DbaaS, and keep them up and running smoothly 24/7. The goal is to provide a seamless flow of information throughout the company, considering both backend data structure and frontend accessibility for end-users. The DBA team works in a team environment that will help build, automate, and monitor the infrastructure platform of our customers.

Company Overview

At JR Technologies, our vision is to create a new customer-centric distribution in the landscape of tomorrow.

Working with us offers many opportunities to experienced professionals who are interested in joining a strong team, learning and mentoring in a dynamic environment, honing professional and technical abilities, and who thrive on new challenges.

We provide an environment where people can leverage their skills, talents, experience, and interests to grow professionally and build rewarding careers. As a disruptive company, our future depends on our capacity to innovate with a sense of drive, purpose, and urgency.

Role Description

You will be part of JR Technologies IT team whose vision is to deliver personalized, customized experiences in the realm of travel and beyond. A successful candidate will have strong leadership, communication, and collaboration skills. This team consists of system administrators, network engineers, Database Administrators, Cloud/SRE Engineers, Security engineers, and DevOps building an IaaS (Infrastructure as a Service) platform.
As a Junior Database Administrator, you will join our DBA team whose primary responsibility is the continuous monitoring, tuning, management, capacity planning, and improvement of existing DSE & Apache Cassandra Clusters and MySQL & Azure SQL & Cosmos DB Servers. In addition, the development and installation of new Clusters/Servers.

Among others, you will be involved in the following tasks:

  • DSE & Apache Cassandra installation & configuration.
  • Azure & MySQL Server installation & configuration.
  • Cosmos DB installation & configuration.
  • Participation in the development lifecycle & deployment process
  • Azure SQL/MySQL/Cosmos DB Server & DSE & Cassandra monitoring, management, capacity planning of clusters performance, and troubleshooting issues.
  • Database backup and recovery, connectivity and security, database creation, and role assignment.
  • Support development and production deployments ( DSE & Cassandra Clusters & MySQL Server)
  • Troubleshoot Database issues with other dba’s/developers ( DSE & Cassandra Clusters & MySQL Server)
  • Development of Migration Tools (in Python or Java or BASH shell)
  • Investigate, troubleshoot, and resolve any issues in cloud environments by examining configuration, checking logs, etc.


  • Bachelor’s degree from an accredited college or university with specialization in an information technology field (e.g., Computer/Management Information Systems (MIS/CIS), Computer Science (CS), Electrical/Computer Engineering (EE/CE), or an equivalent combination of related education and work experience.
  • Basic knowledge of DSE & Apache Cassandra environments.
  • Basic understanding of NoSQL database (+CQL Cassandra Query Language & Cassandra Data Modeling).
  • Basic knowledge & usage and administration skills in Linux systems (Redhat & Centos).
  • Basic knowledge of Python Programming language.
  • Basic knowledge of BASH scripting.
  • Basic knowledge of Relational Database Management Software (MySQL).
  • Very good English written and oral communication skills.

Nice to have

  • Knowledge of Microsoft Azure.
  • Knowledge of programming languages such as Java.
  • Ability to use a wide variety of open source technologies and tools.
  • Python, Perl, and/or shell scripting experience.


  • Full-time position based in Chania or working remotely
  • Competitive Salary
  • Private Health Insurance
  • Friendly, pleasant, and creative environment



We are always looking for talented professionals with a passion for work, who enjoy what they do and give their best.

We are transforming the travel industry - be a part of it!


Please contact our HR department at

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JR Technologies is an equal opportunity employer. We will not discriminate and take affirmative action measures to ensure against discrimination in employment, recruitment, advertisements for employment, compensation, termination, upgrading, and promotions. Equally important and handled in the same manner are other conditions of employment against any employee or job applicant based on race, color, religion, gender, gender expression, age, national origin, medical condition or disability, marital status, or sexual orientation.